Telegraph type-writer.



G. A. GARDWELL.` TBLBGBA-PH' TYPE WRITER.

G. A. GARDWELL.

TELEGRAPH TYPE WEITER. APPLIOATION r1LBD.n4-g.v 1a,jy"7l i Patented Dec.1,1908. 7 SHEETS-SHEET 2.

www m .NAW www I L62 Z Ma ATTORNEY S- G. A. CARDWELL.l

TBLEGBAPH TYPE WRITER. APPLIQATION FILED nu. 1a, 19o?.

Patented Dec. 1,190'8.

'l SHEETS-SHEET 3.

Bmw WITNESSES,r V LDI() Y INVENTOR' W f W. ma/w.

if. Y. .xml/11` G. A. GARDWELL. TBLEGRAPH TYPE WRITER.

APPLIOATION FILED 11.52.18, 1907.

7 SHEETS-SHEET 4.

Patented Dec. 1,1908.

INVENTUR G. A'. QARDWELL. TELEGBAPH TYPE WRITER.

ArrLxouIon Hum 111.13, 1907.

.- Patented Dec. 1,1908. '1 SHEETS-SHEET '5.

G; A. GARDWELL.l

TBLEGBPH TYPE WRITER. l 'APPLICATION FILED IAR. I8-, 1907.. A;

` Patntd D66. 1, 1908.

IIElI.

vWITNESSES: INVENTOR i UNITED srAriis PATENTv onirica.

GEORGE'A. CARDWELL, OF NEW YORK, N, Y., ASSIGN OR TO AMERICAN TELEGRAP-HTYRE- WRITEROOMPANY, OF NEW YORKN. Y., A CORPORATION OF DELAWARE.

TELE GRAPH TYPE-WRITER.

Specification of Letters Patent.

ratesteanea i, 190s.

Application filed. March 18, 1907. Serial No. 362,970.'

To all whom it may concern: i

Be; it known-that I, GEORGE A. CARDWELL, a citizen of the United States,residing at New lYork city, in the county of', New York and State f NewYork, have invented certainnew and useful Improvements in TelegraphType-VVi-iters, of which the following is -a specification.

The present invention relates to a telegraph typewriter or receivinginstrument operated by electrical impulses from a-main line-v circuit toprint letters or= other symbols corresponding to those'of thetransmitting instrument. lThe appropriate series ofelectlrical-iiiipulses. maybe impressed upon the 4inaii-n line circuit'by any suitable instrument l and according to any prearranged code or'System pulse.

.Y In accordance with the present invention` term a controller inasmuchas it fixes or deuse is made of what I will forconvenience termines theprinting position ofthe type Wheel. This controller comprisesa series of.pins capable of being set ormovedinto the desired position bycoi-responding electromagnets which are energized in a predeterminedsequence for each letter or other symbol,- it being necessary in theform shown to utilize three impulses from the main linecircuit to effectthe ultimate position of the "of the type Wheel to its ultimate orprinting position. Upon the coming in of the first impulse over the linecircuit to close a selected main circuit, a break or gap is closed in atleast one of the secondary circuits of all ofthe other main circuits,but no break or gap `is closed in the selected maincircuit. Upon thecoming.` in of the-second impulse through another selectable magnetanother main circuit is closed,`and the closing of said circuit closes abreak or gap in at least one ofthel secondary circuits of the maincircuits `other than the particular one closed, and

also closes a break or gap in the tertiary circuits to provide a closedtertiary circuit upon the comingv in of the third impulse. The threesuccessive impulses overthe main line are utilized to determine threesuccessive positions of the type wheel. The first impulse over a maincircuit determines the first position of said wheel, andat the same timecloses a set of secondary circuits one of which is utilized upon thecoming in of the second impulse. The second impulse over a selectedsecondary circuit determines the second position of the printing wheeland at the same time closes a break in the tertiary circuits one ofwhich is utilized upon the coming-in of the third impulse. The thirdimpulseover a selected tertiary circuit determines the third or ultimateposition of the type wheel. Each impulse over the main line is directlyutilized to effecta 'movement of the type wheel toward its ultimate orprinting position. That is, upon the coming in of each impulse one ofthe controller magnets is selected and energized, and as an auxiliaryoperation the first and second impulses close circuits Which areutilized on the coming in of the second and third impulses respectively.

The present system greatly simplifies the electrical as well as themechanical operations involved in that the type wheel is started towardits printing position iinmediately upon-the coming in of the firstimpulse and isnot held back until the coming in of the last impulse. Byemploying a controller comprising means by which a given number ofletters or other symbols are grouped according to the four quarters ofthe controller the type wheel is moved to the selected quarterimmediately upon the com ing .in of the first impulse; to a division ofthe selected quarter upon the coming in of the second' impulse; and to asubdivision of vthe quarter immediately upon the coming in of the thirdimpiilse, the last being the ultimate or printing position. If, forexample, the selected letter lies in the fourth quarter the wheel ismoved to`that quarter iinme- .diately'upon the coming in of the firstimpulse, and then in succession to the proper division and subdivisionof that quarter upon the coming in of the second andl thirdimpulses,respectively. 4The aggregate of the several movements of thetype Wheel is al Ways less than the circumference of the 1n addition tothe system of circuits upon which my invention A is primarily based Ihave shown the details of aninstrument in order to fully explain' themechanical operations involved, it being understood that the mechanicalconstruction mayfbe `varied .so long as it is adaptedx to carry'out theprinciple of the selective system herein disclosed.

'lhe invention will be vunderstood by reference to the accompanyingdrawings in which Figure 1 is a diagrammatic view of the circuit systemof the machine; F ig. 2 a side elevation ofthe machine; Figs. 3 and 4 atop view, and a central longitudinal section, respectively, thereof;Fig. 5' an inverted plan viewof the magnets beneath the hed of themachine; Fig. 6 adetail view of `the type wheel controller; Fig. 7 adetail view of one of the selectable magnets ;#F ig. 8 an end view of aportion of Fig. 7 Fig. 9 a top view of the type wheel; Fig. 10 a 'detail`view of the carriage spacing mechanism and the ribbon feed; Fig. 11 adetail view of the motor mechanism for rotating the type wheel; and Fig.12 'a detailv view of a relay7 switch included in one of the localcircuits.

Similar reference numerals indicate similar parts in the several views.

Before entering upon a detailed description of the circuit system I willdescribe the' construction of the type wheel and the controller, and therelation between them. I may state here, however, that in Fig. 1 I haveshown four contacts designated respectively 1, 2, Sand 4, the closing ofany one of which effects, primarily, the setting of a con- 'troller pin.These contacts are closed re- :line there will be a Weak positive and a,strong positive, and a weak negative and a strong negative impulse. Ihave shown four relay switches as that number is suicient for practicalworking conditions. It is also feasible, although not commerciallypracticable, to use four main line circuits each havinq a relay includedtherein in whichl case impulses of the same kind or character can beused. It will be understood, therefore. that the use of two main linecircuits and four relay switches is merely by way of illustration, theessential factor being that there shall besa sutlicient number ofswitches for commercial purposes.

Referring now more particularly to v-the type wheel and `the controller,the numeral 7 (Figs. 2, 4 and 9) designates a wheel having on theperiphery thereof any desired number of letters or other symbols.`The'hub of this Wheel is keyed or otherwise rigidly secured to the upperend of a spindle A8 which extends through a hollow shaft 9, the latterhaving a hearing in a bracket 9 (Fig. 1,1)-

and a yoke 92 forming a part of the frame of the machine. The spindle 8is capable of longitudinal movement in said shaft so that the wheelmaybe properly positioned according as to whether the letter on thewheel to be printedis in the upper or lower row.

Normally the type wheelis in-position to print from the upper row, andto effect the vertical adjustment thereof -to print from` the lower rowthe spindle 8 is seated upon a ypinv 8 passing Vthrough an opening in abracket 93, and in turn resting upon the free end' of an armature lever82.

held` in its retracted position by a spring 83 surrounding the pin 8 andbearingbetween the bracket 9 and a collar 9'* onthe pin 8. The typewheel is connected to -shaft 9 through av pin 10 (Figs. 4 and 9)projecting upwardly from the arm of a collar 10 clamped to said shaft,the pin 10 passing through an opening in one of the spokes 102 of thetype wheel. This while effecting the rotation of the type wheel when theshaft 9 is rotated permits the vertical adjustment of .said Wheel towhich reference has been made.

To eEect the-desired rotation of type wheel 7, when released by thecohtroller as hereafter described, I employ a spring 11 secured at oneend to a casingll and at the other to shaft 9. This spring iswound by Vamotor 12 the shaft of which is geared to 'a counter-shaft 13 (Fig. 11)carrying a pinion 13 which meshes with a gear 132 keyed on spring case11. -On the counter-shaft 13 is a ratchet wheel 133 engaged by a backlash pawl 134 to prevent 'a reverse movement of shaft 9 when the springis completely wound.

16 designates a carriage (Figs. 2 and 3) capable of movementtransversely of the machine at the end of each printing operation as inan ordinary typewriter. On this carriage is mounted a paper reel 16 fromwhich the paper is fed through guide rolls 17 and 17', thence betweenribbon 17 2 and a hammer 18, the printing being effected by the forwardmovement of said hammer. c

In order to release the type wheelfrom its normal position and to arrestit at a given point, and to effect certain other operations ,of themachine such as line spacing, car- The latter is lows.

fSecured -to the base'of the-frame ofthe Vmachine isa standard'QO onwhich is mounteda stationarydrum' comprising upper and \lowerplates21and 22lrespecti-vely,said plates having openings therein adapted toreceive :pins whichfserve', :when projected'fupwardly, .to 4.limit f ordetermine the Qultimate printing gposition -ofthe -ty wheel, aswell asthe :intermediate'steps y-1n-aasachi'ngthat :,position,-it1-beingfremembered that 4at'deast `three im- ;-pulsesare'requiredwtofset'the printing wheel -for anyronekof the letters orother symbols -the'neon. "-These pins, which `I `will subsequentlydesignate by individual reference numerals, are Eprovided with collars23,*except the stoppin forthe normal position of the controller, saidlcollarsfbearing upon the lower plate 22v-of1the'controller drum.Surrounding said l pins-and-bearing between the upper plate andsaidcollars are springs 24. These springsexert ae downward pressure ltohold the upper ends ,of thelpins flush with or below theace of theupper-plate 21, and to retract the armaturesofrthe `selectable magnetswhen the latter are denergized.`

'Secured toshaft 9 is ahub-25 having integral-therewith -four arms'26,27, 28 and 29, set'ninetyI degrees apart. Thesearms are so disposed astofsweep over the face of theupper-.plate 21` when-permitted vto rotate,by beingreleased from `engagement with .any one 'of the projecting pins,through spring 11 and the connection-of the spring ease 11 to :shaft 9.The arm 26 is longer than any of the-others y(Fig. 6) and all are heldin normalrposition by said arm restingagainst a stop pin 39 which restsupon and is held infitsrprojectedpositionby an armature 31 of springmetal secured to abracket 31', the

`retracted yposition of said armature being limited by'a suitable .stop312 (see Figs. 3, 4 and 6). The 'magnet 32 vwhich controls armature 31isnormally denergized. lllVhen energized-said amature 31 will beattracted and the stop pin 30 withdrawn to permit thefcontrollerfarms torotate until arrested by another one-of the=pinsvof the controllerwhichhfas been-set.

As seen by reference to Fig. 6 Va certain definite arrangement of the'controller pins is'- observed. The pins 34, 35, 36 and 37 areset'ninety degrees'apart and determine the four quarters of the circle.Each quarter is divided into three equal thirds bypins designatedasfollows: in the first quarter'38, 39 and 40; in the second quarter 41,42and 43;

l inthe third quarter44, 4-5"and 46; in the fourth quarter 47 48 and 49.The first quarter is further subdivided by three groupsof three 'pinseach, one group being in each of the'three divisions of that quarter anddes' .ignatedas follows: those ofthe {irstsubdivision '50, 50b and i50;Athose-:df theisecond third subdivision 52, 52b and 52C. -pinswhichdetermine the four quarters, and

subdivision 51?, 51b and 51e.; and those of the The four the twelvelpins which determine the -divisions ofthe quarters into thirds-arearranged -in acircle and sorplaced as to lie only in the 'pathfofl thelongestarm 26. The three sets :of ysubdivision pins :are i arranged inythe arc ofa circle landare so placed asto -1ie=in the path of all thecontroller arms. Theoretlcall each third-of the remaining quarters issimilarly subdivided by three pins each, but by lusing four arms I amenabled'to llessen the number of pins by restricting the ultimatesubdivision to. the lfirst lquarter. As for example, if a given letteror other symbol-to be printed 1s determined by a pin in the seconddivision of the second quarter,

that is the division `determined by pin 42, the arm. 26 on the irstimpulse will be brought to rest against pin 35 after being released fromthe stop pin 30, and on the second limpulse against pin 42. When thatoccurs arm 29 w1ll be opposite pin 39, and the third impulse will -bringsaid arm 29 against that one of=thel group of three pins 51, .'51band-51 corresponding vto the particular letter or other symbol, saidlastnamed pin arresting arm 29 and therefore the type wheel the'same asif arm 26 should be'arrested by a pin inthe seconddivision of the secondquarter. There is, therefore, no necessity of duplicating thesubdivision pins. I will later refer to this when c0nsidering thecircuits.

It will be seen from the above that the controller pins may be regardedfrom one point of view as-separated into three groups; namely, thosewhich determine the quarter, those which determine the divisions of thequarters; and those which determine the subdivisions of the quarters; itbeing noted that there are four qu-arter pins; twelve division pins,three for each quarter; and nine subdivision pins, three in each of thethree divisions lof the firstquarter. These lastenamed pins answer forall quarters when four arms are used( The quarter pins 34, 35, 36'and`37will arrest the arm 2G at the Yparticular quarter the pin of which israised;

a division pin will arrest the same arm at the proper division, that isat one of the three divisions of each of the quarters; and a subdivisionin will arrest that one of the four arms which is immediately back ofit. I vam thus enabled, with a given number of letters or other symbols,to determine the ultimate position of the type Wheel-by the subdivisionpins confined within the first quarter.

Each

controller pin rests-upon the forward end of an `armature of anelectromagnet. These magnets are designated'by the numeral of thecorresponding controller pin v 130 with a suitable exponent, inyorderthatlthey may be readily identified in the circuit dia'- gram.,These magnets may be conveniently grouped as illustrated in Fig. 3, the-armatures being pivoted on a standard 53 and little below the plane .ofthe upper side of plate 21. f

The armatures of the four quarter magnets (one of them beingy shown inFig'. 7), are provided with a' depending arm 54 so disposed that when agiven one of those magnets is energized its armature, through thearm'54, will` close a set of three spring contacts or switches includedrespectively in the 'circuits of the three division magnets of thatquarter, the purpose being that upon the second impulse the current'willfind a closed circuit throu h a division magnet. Also when a divisionmagnet isenergized, as more fully described hereafter, it closes acontact which upon the third impulse enables the current to flo'w throuh a subdivision magnet. The type .whee c 7 and the controller arms 26,27, 28' and 29 rotate in synchronism through the described connectionswith shaft 9. The .controller being divided into quarters, it isnecessary that the type wheel sha-ll be similarly divided, that is acertain number of' letters or other symbols should be grouped on thetype wheel corresponding to the positions of the magnets in thecontroller. .In order to energize the controller magnets in ropersequence to position the type wheel' or printing a desired letter, apredetermined code or system of sending inthe impulses is essential. lnan instrument constructed by me iny accordance with the presentinvention I have used the -followin g 1-2-1 letter space 2-1-2 E 3-1-241-2 M 1-2-3 carriage return 2-1-3 H 3-1-3 4-1-3 J 1-2-4 llne space2-1-4 N 3-1-4 'I 4-1-4 B 1-3-1 type wheel shift 2-3-1 W 3-2-1 Y 4-2-1 X1-3-2 type wheel release 2-3-2 R 3-23 C 4-2-3 Z 1-3-4 A 2-3-4 S' 3-2-4 F4-2-4 1-4-1 I 2-4-1 T 3-4-1 G 4-3-1 K 1-4-2 O 2-4-2 V 34-2 Q 4-3-2 P1-4-3 D 2-4-3 U 3-4-3 L 4-3-4 The numerals in the abovecode or systemindicate the sequence of the impulses through the relay contacts 1, 2, 3and 4. That is, for example, for the letter A the first impulse isthrough lthe contact 1, the second impulse through the contact 3,A andthe third impulse through contact 4. It will -be noted that the secondimpulse over the main line must come through adifferent contact fromthat of the first impulse; and that the third impulse must come througha different contact from that of the second and immediately precedingimpulse, but mayor may not be through the same as the first impulse inthe series. .1n other words, the firstimpulse may come from the closingof any one of the four relay contacts; the second impulse from anyone ofthe three remaining; and the third from any ofthe three open contactswhich'. at that time may include that through which the irst impulse wassent.

To understand the several circuits and connections for operating thecontroller` reference should be made to the diagram Fig. 1.

It will be seen that each line circuit includes a polarized relayelectromagnet the arma- ,ture of which is capable of moving in onedirection or the other according to the p0- larity of the'impulse on itsline. The armatures of these magnets are'connect'ed with one terminal ofa local battery `100. The

armature .52 coacts with the vcontacts 1 and 2,

and the armature 62 with the contacts 3 and 4, so that whenever a givencontact is closed the battery circuit will be continued through thecorresponding main circuit 1', 2', '3' or 4' to one of the quartermagnets 34', 35', 36', 37 of the controller. According to the code abovegiven if a letter is in the first quarter 'the circuit of controllermagnet 34' will be closed through contact 1; if in the second quarterthe circuit ot controller ma et 35' will be closed through contact 2; iin the third quarter the circuit of controller niagnet -36 will beclosed through contact 3; and if in the fourth quarter the circuit ofcontroller magnet 37 will be closed throughl contact 4.

Magnet 32 which controls the position of the stop pin 30 is alsoincluded 1n the battery circuit so thatwhen said circuit is closed'through any one of the 'four relay-contacts said magnet will be enerized and the attraction of its armature'w' l permit stop in 30 to dropthereby releasing thefcontro ler arms. Spring 11 will now act, throughthe described connections, to rotate the controller arms until arm 26 isarrested by that one of the quarter pins which has been raised or movedinto'position by the corresponding controller magnet.

When a given quarter magnet is energized the movement of its armaturewill effect through the arm 54 (see Fig. 7) the closing of acorresponding set of contacts in secondary circuits leading to the threedivision magnets of that quarter. In Fig. 1 the three contacts 55, 55and 552 are in the secondary circuits 2, 3 and 4a respectively of thethree division magnets of the controller 38'.,l 39 and 40. The contacts56, 56' .and 562 are in the secondary circuits l", 3b and 4brespectively of the controller magnets 41', 42' .and 43 of the secondquarterof the controller. The contacts57, 57' and`572` are in thesecondary circuits 1, 2c and 4c respectively of the magthe circuits ivcuits 4a, 4P and 4 constitute the .circuits of the main circuit 4f.l

" ticular quarter .find a closed'c 58 and 582 are in thesecondarycircuits 1, 2d andv 34i of the magnetseQ-'ILS and 49 whichcontrol the position of the three division pins of the -fourth quarterof the convthe secondarycircuits of Atheanain circuit 1';

2, 2c and 2d constitute the secondary circuits of the main circuit 2,`the circuits 32, 3*v and 3d constitute the secondary circuits of themain circuit 3'; and the cir- Vsecondary The contacts in thesesecondary-'circuits are merely ternporary closures to enable the currentto flow through a given division magnet upon the second impulse. It willbe noted that the circuit 12 which isbranched from circuit l has n'oconnection to a division ma et in the rst quarter of the controller;tiit the circuit 22 which is branched from circuit 2 has no connectionto a division magnet inv the second quarter; that thecircuit 32 which isbranched from circuit 3 lhas no connection to a ydivision magnet in thethird quarter; and that the circuit 4.-2 Which is branched from circuit4 has no connection to a division magnet in the fourth quarter. So that,.as above stated, in the sequence of impulses thesecondA and thirdimpulses -rnust e Adierent from the one immediately receding. If a givenimpulse is followe yby one of the same character, or through thetroller. nlThe circuits 1b, 1c and la constitute A u same relay contactit is obvious that the same magnet would be energized and the impulseVwould be without effect. It will lthus be seen that when a given quartermagnet is ener-- gized the contacts included in the circuits (thosedesignated for convenience ,as the secondary circuits) of the threedivision rnagnets of that quarter are closed, so that upon the secondimpulse the battery current -vvill ircuit' through the selected divisionmagnet. Norinally all of the circuits of the instrunient are open excepta .Weak holding circuit"4 59 which/.includes all of the controller mag-knets. The first impulse, therefore, having released the long controllerarm 26by the withdrawal of stop pin 30, all of the controller arms willbe rotated by reason of their connection withshaft 9 until the arm 26 isarrested by contacting with the-parin which has been raised by itsmagnet. Et the same time, as We have seen, the three contacts in thelcircuits of the three division magnets of that quarter have been closed,and upon the opening of the relay contact the divisionconta'cts are heldclosednby the holding circuit 59.

The second impulse over the mainline circuit -lnay come through any oneof the relay contacts not closed by the first im ulse. The course .of Athe battery current w-i l be as -before' vthrough the maincircuit closedby the lrelay contact to the selected qua-rter' magnet,

` pin 36, the setting of the secondary' circuits of the three divisionsof that quarter. This, however, is Without efiiect because the long arm26 has passed from its normal posltion and is at. rest against thequarter pin raised upon the first impulse. For example, if upon thefirst impulse the arm 26 is arrested by the quarter any one of the otherthree quarter pins Will not disturb 'said arm.

The effective Work of the battery current on the second impulse is,therefore, through the corresponding branch circuit 12, 22, 32 or 42,through relay 61 Which is energized thereby, then through thecorresponding one of the three division contacts closed by the precedingimpulse to the secondary circuit of the division magnet. The latterbeing energized, its armature Will raise or set the correspondingcontroller pin. The current then vfiovvs through the common return Wire60,

through magnet 62 which o ens the holding circuit 59 thereby openingtiie three contacts in the three secondaryv circuits of the divisionmagnets which were closed by the first impulse. This opening of theholding circuit denergizes the quarter magnet Which 4 remained energizedby' the holding current after the relayl contact closed' upon the firstimpulse, Was broken. 'When the quarter magnet is ythus dengerized thecorrespond- -ingpm drops to its normal position thus,

freelng controller. arln 26 an-d permitting itto rotate until arrestedby the particular division pin set upon the second impulse. The- Whichis includf magnet 62 just referred to, ed in the common return Wire,serves to open the .holdin-g circuit 59 momentarily When a given relaycontact is closed upon the second or third impulse.

The armature 62' has .pivoted thereon a pawl 622 which normallyl restsagainstone of the spring contacts 59. When magnet 62 is energized theforward movement of its armaturenwil'l cause the pawl Y622 `to separatethe contacts 59. thereby opening the holding circuit 59. This Imomentary `for the reason that as soon as the lower end of pawl 622contacts with a stop pin 623 said awl will betiltedso Athat its upperend Willi be carried out of engagement Withjthe left-handv side of theengaging contact'59, thus again' closing circuit 59. When armature 62 isretracted the pawl 622 'Wipes' under the contact 59 and resumes itsnormal position. i

In addition to the setting of a division4T in upon the second impuse itisnecessary-'t at' certain contacts b e closed which will lpermit thethi-rdI -impulse to set thefinal or subdivision pin winch determines theultimate or println position of the ty e Wheel. This is accomp ished asfollows. energized through the closing of the circuit of a givendivision magnet, as above deen magnet 61 -i's openlng of circuit 59 isonly 4f scribed, through one of the branch circuits 12, 22, 32or 42 itsarmature 61 is attracted thereby closing said magnet 61 on itselfthrough V'a local circuit 63. This latter circuit can be readily traced,from lbattery 100,

circuit 635, coil of magnet 61, to point 63,'

armature 61', to point 632, through'part of the holdingcircuit 59 topoint 68", thence throughthe armature 64 of a clearing mag,- net 642, tothe return battery Wire 101. When the /second impulse is broken throughthe selected relay contact, magnet 61 will remain closed on itself andthe division magnet which has been-energized to set .up the divisionpin,and the quarter magnet-Which closed the contacts of the circuits of thedi pulse the armature 65 is retracted closing a local circuit 66 whichcircuit include'sa magnet 67 When magnet 67 is energized its armature 67(see Fig. 12) which is in the form of a bell crank lever, is attractedto close a spring contact' 69. This contact 69 is closed for the purposeof maintaining magnet 672 energized, said magnet being in eluded in thelocal circuit-68, to thereby maintain closed a series of contacts 70,1n-

cluded in the circuits of the subdivision magnets. These for conveniencemay be termed the tertiary circuits. The magnets 67 and 672 are inreality two Windings,.the former being energized through the closing oflocal circuit 66 by the opening of magnet after ma net 61 hasbeen'closed by the second impu se. VVhen contact 69 is closed by magnet67 said contact is -maintained closed by magnet 672 when 67 isdenergized at the time 0f opening of circuit 66 by the closing of one ofthe relay contacts by means of magnet 65.'

The operationsinvolved iii the fore oing series may be briefiy restatedas follows. The -first impulse through any one ofthe four relay contactsenergizes the corresponding quarter magnet of the controller to set aquarter pin,` and at the same time withdraws stop pin 30 and closes thethree division contacts in the secondary circuits of the selectedquarter, or in other Words closes a break in one of the secondarycircuits in each of A'the main circuits other than that` selected. l

-The closing of a relay contact upon the second impulseenergizes thecorresponding quarterv magnet to close a breakin the secondarycircuitsof the division magnets of that quarter, but without effect. Atthe same time the current passes from the second main circuit selectedthrough'one of the division contacts of the- Iirst impulse to t ecorresponding division tiiarter selected upon the- Furthermore, theholding circuit .59 is vmo- 70' mentarily broken by magnet 62.Thisbreaks the contacts closed by the first impulse and restores theinitial quarter magnet pin to` normal position. Magnet 61v being at thesame ,time energized closes circuit 468v on itself. Magnet 65 beingenergized ropens circuit 66 controlled thereby. Upon the breaking vofthe relay contact Which Was closed upon the second impulse, circuit 63remains closed on itself. Circuit 80 66 which Was closed by the openingof the -contacts at magnet 65`energizes magnet 67 which remains closedthrough circuit' 68 and contact 69, contacts 70 being closedfby -the lsame operation and remaining closed by the -V current through magnet6.72. At this time, that is the opening of a relay contact, the y secondpin of the series, being one of the division pins, has been raisedandthe controller arm arrested by it. The division contacts WhichP Wereclosed by the second impulse remain closed through holding circuit 59.The division magnetselected remains energized through the holdin-gcircuit there,-

4by .holding the vcorresponding pin` in posi- 95 tion.

The third impulse must come through a relay contact different from thatimmediately preceding but it may be the same or different from thecontact closed by the first impulse. This operation energizes the cor-rresponding quarter magnetjand sets the 'controller pin oftl-iat quarteralthough this is Without effect for thereasons before stated Whenreferring to the second impulse: that v is, the long arm ofthe controller has already been arrested'by a diyision pin.` yThe 'closing ofthe division contacts by the third `impulse is also Without effectbecause the third v is the last impulse. of the series. The cur- 1(10rent, as on the second impulse, Lpasses through that one. of the branchcircuits 12,

22, 32 or 42 corresponding to the closed'relay' contact through the.corresponding division n magnet to set a divisionpin, but this opera-,tion is also Without efl'ectinasmuch' as .the longv ai'm 26 ofgtliecontroller has' beeiif stopped by a division pin on the second'im-ypulse and cannot be moved "beyond tl'i'at par-7 i ticular ldivision, ofthe selected' quarter.` `120 lifter going through'v thequarterf'and'divi-K` sion magnets the current'passes to the comv mon return 'Wire`60.1 )l romeach ofQthe twelve"s'ect'indaryfcir-r'-H ilits a'tertiarycircuit leads toa correspond- '125 ing contact in the vgroupdesignatedvrespectfV l ive1y 7 0. Asseen. by'reference to .F ig. 1, l the circuit1b has a'brancli 1g leadingftofonel,

of the contacts 70 and tlieiice'to 'subdivision magnets 50 and 5l*;-ci'rcuit"`3b' ha'sa branch 130 3g. leading to one of said.contactsandto subdivision magnets 502 and 512; andthat circuit 4* as hasa branch 112Y leading' to one of said contacts and to magnets' 503 and512'. The circuit 11 has a branch. 1 leading to one of said contacts andthence to magnets 51 and 52'; that circuit 2c has a branch 2t leading toone of said contacts and to lmagnets 512 and 522; that. circuit 4: has abranch 4f leading to one of said contacts and thence to magnets 513 and523. Also that circuit l1 has a branch 1e leading to one of saidcontacts and to magnet 52'; that circuit 2d has a branch 2e leading toone of said contacts and to magnet 522; and that circuit 3d has a branch3e leading to one of said contacts and to magnet 523. Also that circuit2a has a branch 2h leading to one of said contacts and to magnet 50';that circuit-3at has a branch 3h leading to one of said contacts and tomagnet 502; and that circuit 4a has a branch leading to one of saidcontacts and to magnet 50.2. By tracing these circuits it Will be seenthat each magnet controlling a subdivision pin of the controller isintwp` ofr these tertiary circuits; that is, magnet 50 is in thecircuits .1g and 2; magnet 502 in the circuits 3g and 3; magnet 503 inthe circuits 4g and 4, magnet 51 in circuits 1F and 1g; magnet 512 incircuits 2f and-3?;.magnet 513 in circuits 4f and 4g; magnet 52 incircuits 1f and 1e; magnet 522 in circuits 2t and 2e,

and magnet 522 in circuits 4f and 3. By so arranging the circuits l amenabled to control the nine magnets which 1u turn control 'the ninesubdivision pins of the controller through the twelve tertiary circuits.The current from a given division circuit upon the third impulse tinds aypath through a tertiary circuit to the corresponding subdivisioncontact at70, thence to the selectedv subdivision magnet to the commonreturn wire 60; thence through the tripping magnet 62 whichde'e'nergizes the quarter magnets and the division magnets sot by theprevious impulse, restoring their pins to normal position and releasingarm 26 thus permitting the arms to rotate until brought to rest by that011e of the arms which is iinmediately back of the lsubdivision pinwhich has been set by the last impulse. This final movement of the armbrings the type Wheel 7 to printing position. When the relay contact isbroken at the third impulse the only circuit through the ,selectedsubdivision magnet is the holding circuit.

The several operations above given in detail may be readily understoodby following the circuits for a given letter. `For example, the letter Awill be set up in printing position by impulses through the relaycontacts inthe order 1-3-4. The several positions of the controller armsare illustrated in Fig. 6. The first impulse being through relay contact1, the stop p in 30 is withdrawn when its magnet 32 isenergized..Thercodeadopted for the letter Afsignifies that it is in the-- lirstquarter of thecontroller. By tracing the circuits it Will be seen thatmagnet 34 will be energized thereby raising pin 34 70 against which thearm 26 will come to rest. At the same time the contacts 55, 55', 552will be closed by the movement of arm 54 depending from the armature ofmagnet 34.' The second impulse will be through relaycontact 3. Thecurrent now Hows through circuit 32, magnet 61, contact 55,Vbranch 3,and magnet 39" which sets pin 39. At the same time trip magnet 62-Whichis included in theicommon return wire G0 is venergizedl 80 tomomentarily break the'holding circuit. This will break the secondarycircuits through contacts 55, 55', and 552 and also deenergizes magnet34 which permits quarter pin 34 to resume its normal position, and the185 type wheel to rotate until arrested by arm 26 engaging pin 39. Therestoration of the holding circuit through contacts 59 maintains thedivision pin 39 kin.. position. On the breaking of the secondimpulsethecon- 90 tacts at 70, which close the circuits ofthe subdivision.-magnets, remain closed as already explained. Thevthird impulse'c'losesrelay contact'lr and bytraeing the'rcircuits the current passes through.circuit 42, the .coi1':95 of magnet 61, .through Contact `572,-throughthe tertiary circuitltf" to the corresponding contact 70 included in thecircuit of magnet 513. The division pin 39 having' been withdrawn uponthe making of the third impulse by the momentary interruption of theholding circuit, and subdivision pin 51c now having been raised, thecontroller arm 26 which isJthe first one immediately back of said raisedpin, will be brought to rest, thus determining the ultimate or printingposition ofthe type wheel for the selected letter. The letter K, forexample, is in the fourth quarter of the controller. To position thetype Wheel for printin this letter the first impulse is through re aycontact 4. This will energize magnet 37 of the controller to set pin 37,and simultaneously close the contacts 58,. 58 and 582, and withdraw stoppin 30. The controller arms will rotate through tivo hundred seventydegrees until brought to rest by arm 26 engaging pin 37. The secondimpulse is throu h relay contact 3. Circuit`32lbein closedtrou h contact582, magnet 49 Wil be energizeA through sec- 120 ondary circuit 3dthereby 4setting pin 40 against which the controller arm 26 will come torest immediately upon the restoration of pin 37 to normal osition. Thethird impulse is through re ay contactA 1. Circuit 1,2 being closedthrough contact 57,

the current Will iow through tertiary circuit 1, which is branched fromthe secondary circuit 1c, to the corresponding contact 70, to magnet 52thereby raising pin 522.130

againstwhich arm 27 will come to rest upon therestoration of pin 49 tonormal position. The principle underlying the arrangement of thesubdivision pins vand the corresponding controller magnets may bereadily understood lby assuming a theoretical condi- .-tion ofthirty-six subdivisionv magnets div vided into twelve groups of three,each group of three representing one division of the controller. Therethen being nine subdivision magnets in each quarter of the conv trollerthe thirty-six magnets so far as concerns rtheir arrangement relativelyto the controller may be considered as divided into nine groups of foureach. That is, for each quarter of the controller' there is a magnet andcorresponding pin occupying the same relative positions in the quartersand, there- `fore, ninety degrees apart. By using four arms 26, 27, 28and 29 I am able to operate the machine by employing only ninesubdivision magnets. This materially decreases the size of the machineas it dispenses with twenty-seven magnets. The ultimate position of restof the controller arms being determined by one of the subdivision pins,it will be noted that for the first quarter the arm 26 only is-calledinto play; for the second quarter arms 26 and 29, the former to 30determine the quarter and division and the latter a subdivision; for thethird quarter arms 26 and 28; and for the fourth quarter arms 26 and 27.y I have in the foregoing description designated the circuit over whichthe 'first impulse is caused to act as the main circuit; that over whichthe second impulse is caused to act as the secondary circuit; and thatover which the third impulse is. causedto act as the tertiary circuit,and it will be understood that the essential characteristic of myinvention is the relation between the severall circuits whereby theclosing of a selected main circuit will energize one of the controllermagnets and at the same tGime close a break in a plurality of circuitsone of which circuits is completely closed on the next succeedingimpulse, a given sequence of three impulses at the least being requiredto determine the printing positionof any letter, the printing beingeffected on' thel breaking of the third impulse. 0 Printing- The typewheel having now been brought to its .printing position, the

printing is effected by the forward moven ment of hammer 18 against thepaper. This lhammer is actuated as follows. Included in the printingcircuit 75 is a magnet 7 5. This magnet is supported in a suitablebracket forming a part of the frame ofthe machine as indicated in Fig.4. Thearrnature 7 52 of said magnet is fixed on rock shaft 7 6 which hasbearings in asuitable yoke 7 6'.' Supported in the frame of the machineis a long tubular bearing 77 through which'passes a `will be wound, andwhen the carriage isreplunger 77. The plunger 77 is surrounded for aportion of its length within the tubular bearing by a spring 772 whichbears against a shoulder on said plunger and 4the base ofv an enlargedopening in the bearing and acts normally to hold the armature 752retracted. When the third impulse is broken magnet will be energized andthe plunger 77 and hammer 18, moved forward, and by impinging againstthe paper effect the print- 75 ing of the desired letter or othersymbol. The printing magnet 75 and other working magnets to be presentlydescribed are vincluded in circuits controlled by a commutator whichwill be more specifically described after a statement of the mechanicaloperations involved.

Letter and 'word spacing-14s before described, the paper roll 16 ismounted on a carriage 16. Constituting a part of this carriage is atransverse rod 162 which moves between pairs of'guide rolls 163 placedon each side of the frame of the machine; EX- tending transversely ofthe machine and forming part of the paper carriage is a rack 78 engagedby a gear wheel 78 loose on a vertical shaft 782 (see Figs. 2, 4 and10). This shaft carries a hollow hub 79 to receive the reduced upper endof a shaft 79 on which is splined a ratchet wheel 80. Secured totheunder side of gear wheel 78 is a crown gear 81 meshing with a similargear 81', the latter being keyed on ratchet shaft 79 and the formerbeingloose on shaft 7 82. Ratchet 80 is provided with two `verticallyset pins 80', which enter openings in the lower crown gear 81. Withinthe crown gear 81 is a coil spring 82 fast at one end to said gear andat the other to shaft 7 8'.

The ratchet 80 is engaged by spring pressed pawl 83 carried by a. lever83 passing' between guide rolls 832, and connected to the upper end ofan armature 84 pivoted on a rock shaft `84 beneath the bed-plate of themachine (Figs. 4 and 5). The magnet 85 is in series with the printingmagnet 75 and when energized the attraction of its armature feeds thepawl 83 over the teeth of ratchet 80. Upon the completion of theprinting operation magnet 85v will be deenergized, when a spring 86secured to pawl lever 88 and to the frame of the machine, will draw saidlever backward so as to feed ratchet wheel 80. By reason of thedescribed connections the gear .78 will be rotated thereby feeding thecarriage the distance of the throw of the ratchet wheel. The spring 82is so connected that when the ratchet wheel is fed to space the carriagesaid spring 125 leased at the end-of a line the spring by unwinding willreturn the carriage to its initial position. For word spacing theoperations are the same except that printing magnet 75 is notenergized-.when pawl 83 rides 130 pawl .802 preventing a reversemovement of 'the ratchet.

Garrz'age reZease.-s seen by reference to Fig. 4 a spring 87 surrounds4the ratchet shaft 79 and bears between the ratchet and the lower crowngear 81. This spring acts ,normally to hold the two crown gears in meshwith each other. The lower end of ratchet shaft 79 is engaged by theforked arm of a pivoted armature 88. When magnet 89 is energized theattraction of its armature 88 drawsshaft 79 downward and with4 it thelower crown gear 81. This separates the crown gears and permits spring82 to -unwind thus rotating gear 78 and-restoring When the carriage toits imtial position.

magnet 89 is denergized spring 87 acts to restore lower crown gear 81 tonormal position, that is in mesh with the upper crown near.

Line space-Supported upon the bed- .lplate of the machine is a magnet 90which when energized effects the line spacing of' the paper. Thearmature 90 ofsaid magnet is in the form of a bell crank lever which atits free end is connected to a rod 902 the ,feed the roll 17 and thereby.the paper a ypredetermined distance depending upon the yadjustment ofthe several parts. When of the type wheel rests upon a y chine.

magnet 90 is denergized a spring 912 secured to the frame and, to lever91 restores the latter and thereby pawl 91 to normal position.

Type wheel shift-In the drawings I have shown a type wheel having theletters or other s mbols there arranged in two rows. Norma y the typewheel 7 is in position to print from the upper row.` When, however, itis necessary to print from the lower row said wheel must be adjusted orshifted'vertically. As before described `the spindle 8 in 8', the latterin turn resting upon the ree end of an armature lever 82. In order toraise type wheel 7 I employ a'magnet 92 secured to a bracket beneath`the bed-plate ofthe ma- When said magnet is energized the attraction ofits armature 82 will raise type wheel 7, as will be readily understoodby osition I Fig. 5 with a laterally projecting arm 8*l lin itsretracted position by a spring 942.

lVhen magnet 92 is energized the arm 84 of its armature lever will bedrawn into such position as to release armature 94 when the latter willbe retracted still further so that the arm 84 will` be locked in itsattracted position by a de tent 943 on armature 9,4.

To restore typeV wheel 7 so that it will print in its normal position,that is from the upper row of letters, after magnet .92 has beendenergized, I energize magnet 94. When armature 94- is thus attractedthe spring 83 acting downwardly against the free end of armature 82 willpermit the type wheel to drop to normal position.

Ribbon feed-The rlbbon 17 2 passes 'around guide rolls 173 (Fig. 9)which maintain it in proper relation to the type wheel and the paper.This ribbon is wound between the two reels 95 and 95. The latter ismounted upon a shaft 952 supported in suitable bearings in the frame ofthe machine. Atits lower end thisshaft has keyed4 thereto a worm wheel953 which meshes with a worm 96. On the shaft of the latter is keyed aratchet wheel 96 engaged by a pawl 962 (see Figs. 2 and 4) carrled by alink 963 pivoted on the side of the pawl lever 83. It will thus be seenthat at each rearward movement of lever 83 to effect the feed of thecarriage at the end of each printing operation the ribbon will beadvanced so as to present a fresh surface for the nextprintlnggoperation.

^ y reference to the code or system which I have used in operatingthepresent machine it will be seen that to effect the operations of letterspacing, carriage release, lme spacing, type Wheel shift and return, acertain sepuence of impulses must be sent .over the ine circuit toenergize the line relays the same as when setting the type wheel forprinting position.

through a given Working ymagnet as described I employ a commutator ringsupported as shown in Fig. 4 on the standard .20 within the controllerdrum. vThis commutator `is divided as shown in F igs. 1 and 7 bysuitable insulation, the inner ring 97 of conductive material being`continuous throughout, and the outer ring. 98 being dividedl into therequisite vnumber of sections. Theinnerleg 97 of the brush rests uponthe continuous ring 97 and the outer leg 98 restsupon the divided ring.The brush is secured to one of the controller arms as 27, therelation ofthe brush to the two commutator rings being such thatwlxen the long arm26 is at normal position against pin 3Q, or against one of thefourquarter pins, or any one of the twelve division pins In order thatthe circuit may be completed i l be noted that the code or system ofimpulsesl the circuits of the Working magnets 7 5,85, 89, 90, 92 and 94will be broken. It will gized when any one of said working magnets isenergized. This opens the holding circuit 59 and restores all parts tonormal position. Any controller pin that has been set for positioningthe type wheel will resume its normal position; and spring 11 rotatesthe controller arms until arm 26 is arrested by pin 30 which has beenraised by the breaking of the. third impulse. The parts are now inposition to be again operated for the printing of the neiit letter or'other symbol.v

Included in the holding circuit 59 is an electromagnet 99 the armatureof which is included in the printing circuit 75. Said circuit should beclosed at the breaking of the third impulse in order to effect theprinting operation. At that time magnet 99 is energized by the holdingcircuit thus closing the break aty that point. At the opening of thethird impulse magnet-32 is denergized thus' closing the break in theprinting circuit at that point, and since the controller brush is on ametallic segment the printing circuit will be completely closed. Whenthe holding circuit 59 is open to re'- store the parts to normalposition after the printing, ma et 99 is denergized and breaks theprlnting circuit 75 through the commutator, i thus preventingA sparkingat the commutator.

Assuming all the letters of a line of writing to be on the upper row ofthe type wheel the only operations involved are those of printing andletter or word spacing. At the end of the line the magnet 89 isenergized to restore the carriage to its initial position, and thespacing magnet 90 is energized to shift the paper. When the type wheelis to be vertically adjusted magnets 92 and 94 are respectivelyenergized.

In the foregoing specification while I have made reference to two mainline circuits it is to be understood that such reference is merely forthe purpose of illustration. As before stated, yI may use a single linecircuit having included therein four relays responsive to differentkinds or characters of impulses. The present invention may be used inconnection with any suitable transmitting instrument capable of sendingthe proper impulses over the line in proper sequence.`

What I claim and desire to secure by Letters Patent is 1. A telegraphtypewriter comprising a plurality of main circuits, a plurality ofsecondary circuits branching from each main circuit, a tertiary circuitbranching from each secondary circuit, all of said circuits beingnormally open, means for closing a selected main circuit and at the sametime closing a break in at least one of the secondary circuits of eachof the other main circuits, means for completely closing a selectedsecondary circuit and at the same time a break in the tertiary circuits,and means for completely closing a selected tertiary circuit.

, 2. A telegraph typewriter comprising a plurality of main circuits, aplurality of secondary circuits branching from each main circuit, atertiary circuit branching from each secondary circuit, all of saidcircuits being normally open, selectable magnets each responding to acharacteristic kind of impulse and adapted to close a corresponding maincircuit, means for closing a break in at least one of the `secondarycircuits of each of the main circuits except the selected main circuitclosed by the first impulse, and means for closing a break in at leastone of the secondary circuits of each of the main circuits except theselected main circuit closed by the second impulse and for closing atthe same time a break in the tertiary circuits, the closing of the thirdselected main circuit completely closing a given tertiary circuit.

3. A telegraph ytypewriter comprising a plurality of main circuits, aplurality of secondary circuits branching from each mainl circuit, atertiaryfcircuit branching from each secondary circuit all of saidcircuits being normally open, means for closing a selected main circuitand at' the same time.

a break in a plurality of secondary circuits, means for completelyclosing a selected secondary circuitand at the same time a break in aplurality of tertiary circuits, and means for completely closing atertiary circuit.

4. A telegraph typewriter comprising a plurality of main circuits, alurality of secondary circuits branching rom each main circuit, atertiary circuit branching from y each secondary circuit, Yall of saidcircuits being normally open, selectable ma ets responsive to acharacteristic kind o impulse and adapted to close a corresponding maincircuit, the breaks in the secondary circuits being grouped so that theclosing-of a selected main circuit will effect the closing of a break inat least one of the secondary circuits of each of the other maincircuits, and means for closing a break in said tertiary. circuits whena given set of secondary circuits is closed, the operation of twoselectable magnets'being required to close the breaks in the tertiarycircuits. I

5. A telegraph typewriter comprising a plurality of main circuits, aplurality of secondaryv circuits branching from each main circuit, saidcircuits being normally open and the breaks in the secondary circuitsbe-130 i ing grouped so that the closing of a selected main circuit willeiiect `the closing of a break` in at least one of the secondarycircuits of each of the other main circuits, Selectable ma etsresponsive to `a characteristic kind o impulse and adapted to close acorresponding main circuit, and means for opening'the secondary circuitsclosed by the first impulse upon the coming in of the second impulse.

6. A telegraph typewriter comprising a plurality of main circuits, alurality of secondary circuits branching om each main circuit, atertiary circuit branching from each secondary circuit, all of saidcircuits beingncrmally open and the breaks in the secondary circuitsgrouped s'o that the closing of a selected main circuit will e'il'ectthe closing of a break in at least one of the secondary circuits of eachof the other main circuits, selectable magnets responsive to a"characteristic kind of impulse 'adapted to close a corresponding mamcircuit, means for closing a break in said tertiary circuits when agiven set of secondar circuits is closed, and means for opening t esecondary circuits closedby a given im ulse upon the i. sending in ofthe next succee ing impulse.I

7. A telegraph typewriter comprising la plurality of main circuits, aluralityof secondary circuits branching rom each main circuit, atertiary circuit branching from each secondary circuit, all of saidcircuits being normally open, selectable ma ets responsive toacharacteristic kind o impulse and adapted to close a corresponding maincircuit, means to effect, upon the closing of a selected main circuitand by the same oper ation, the closing of a break in at least one ofthesecondary circuits of each of die, other main circuits rupon the sendingin of' a; given impulse, and means for closing a break in `the, tertiarycircuits, and for opening the secondary circuits closed by a givenimpulse, upon the sending in of the next succeeding impulse. 8,'Atelegraph typewriter comprising a -plurality of main circuits, alurallty of secondary'circuits branching rom each main circuit, atertiary circuit branching from each secondary circuit, all of saidcircuits being normally o en, and means for closing said circuits seectively by first closing aI given mainvcircuit and a break in at leastone of the secondary circuits of each of the other main circuits, kthenVopening said selected `main circuit and maintaining the breaks inthesecondary circuits closed, then closing anotherfmain circuit and abreak in at least one of the secondary circuits of each of the maincircuitsexce t those of the selected main circuit, and y thesame oration opening the `secondary circuits c osed 9. telegraph typewritercomprising a plurality of main circuits, a plurality of secondarycircuits branching from each main' circuit and a break in at least oneof the secondary circuits of each of the other main circuits, means formaintaining said breaks in the secondary circuits closed upon theopening of the selected main circuit, means adapted upon the sending inof the second impulses closing the corresponding main for closing abreak in at least one of the secondarycircuits of each of the maincircuits except those of the second selected circuit and for opening thesecondary circuits closed by the first operation and for closin a breakin the tertiary circuits, and means or opening the set of secondarycircuits closed by the second impulse upon the sending in of the thirdimpulse.

10. A telegraph typewriter comprising a plurality of main circuits, aplurality of secondary circuits branching from each main circuit, atertiary circuit branching from each secondary circuit, all of saidcircuits 'beiug normally open and each including a magnet, means forclosing a given main circuit to energize the magnetincluded therein theoperation of said magnet closing breaks in 'at least one of thesecondary circuits of each of the other main circuits, means -forclosing a second main 'circuit' to energize a magnet included in oneofthe secondary circults the break in which was closed by the closing ofthe first-named main circuit and, by the same operation to close a breakin the tertiary circuits, and means for closing a third main circuit tothereby energize a magnet included in one of the tertiary circuits thebreak in which was closed by the closing of the second-named circuit,the closing of the main circuits in a certain order of three at theleast closing respectively a main, a secondary and a tertlary circuit.

11. A telegraph typewriter comprising normally open main, secondary andtertiary circuits, means for closinga selected main circuit and at thesame time breaks in a plurality of secondary circuits, means forcompletely closing .a selected secondary circuit `through another maincircuit and at. the

same time breaks in a plurality of tertiary circuits, and means forcompletely closing a selected tertiary circuit through a third selectedmain circuit.

12. A telegraph typewriter comprising by the first operation, andlclosing a break in i normally open main, secondary and tertiary saidtertiary circuits.

circuits, means for closing a selected main circuit andV aty the sainetime a break in at .least one of the secondary circuits of each of theother main circuits, means for completely closing one of said last-namedsecondary circuits through another main lcircuit and at the same time abreakin at least one of the secondary circuits of each of the Vmaincircuits otherthan that closed when the selected secondary circuit isclosed, and means for completely closing a selected tertiary circuitthrough a third selected main circuit. J

13. In a telegraph typewriter the combination of a type wheel, acontroller comprising electromagnets to determine the position of saidwheel, normally open circuits in which said magnets are included, meansfor energizing a set of said magnets in a predetermined sequence for anygiven letter or other' symbol, and means, when a given cir-- of thesecond and third magnetsl to be energized' upon the sendingin of the rstandI second impulses respectively.

15. I n a telegraph typewriter the combi-l nation of a type wheel, aseries of electromagnets to determine the position of said wheel,normally open circuits in which said magnets are included, means forenergizing a set ofsaid magnets in a predetermined sequence for a given.letter or other symbol by successive impulses, means for closing a breakin a plurality of circuits when the first of said magnets is energizedvone of which circuits includes the next succeeding magnet to be oerated, and means for closing abreak in a p urality of circuits when thesecond magnet is energized one of which last-named circuits includes thethird magnet to be 0perated.

16. In a telegraph typewriter the combivnation of a type wheel,electromagnets to control theposition of said wheel, normally o encircuits in which said magnets are inc uded, means for energizing aseries of said magnets in a lre-determined sequence by successive impuses, each impulse vcompletely closing the circuit of a given magnet andalso breaks in aplurality of circuits one of which latter circuits viscompletely closed selectively on the coming in of the next succeedingimpulse.

17. In. a telegraph typewriter the combination of a type wheel,electromagnets lto control the position of said Wheel, normally opencircuits in which said magnets are included, means for closing a givencircuit thereby energizing one of said magnets 'and at the same timeclosing breaks in a plurality of other circuits, means for completelyclosing the circuit of a second magnet through one of the circuits abreak in which was closed when the first magnet vwas energized and atthe same time closing breaks in a third set of circuits, and means forcompletely closing one of said last-named circuits and therebyenergizing a third controller magnet.v

18. In a telegraph typewriter the combination of a type wheel, aplurality of main circuits, a plurality of secondary circuits branchingfrom each main circuit, a tertiary circuit branching from each secondarycircuit, said circuits being normally open, a magnet included in eachlor said circuits to determine a given position of said wheel,

means for energizing a series of said magnets in a predeterminedsequence, and means for rotating the type wheel when each of theselectedmagnets is energized.

19. In a telegraph typewriter .the combi nation of a type wheel, aplurality of main circuits, a plurality of secondary circuits branchingfrom each main circuit, a tertiary circuit branching from each secondarycircuit, said circuits being normally open, a magnet includedin each ofsaid circuits to determine a given position of said wheel, means forclosing a selected main circuit to energize a corresponding magnet andby the j same operation to close a break in at least one of thesecondary circuits of each of the other main circuits, means for closinga selected secondary circuit to energize a corresponding magnet and bythesame operation to close a break in the tertiary circuits, means` forcompletely closing a selected tertiary circuit to energize `acorresponding magnet, and means for rotating the type wheel when each ofthe selected magnets is energized. l

20. In a telegraph typewriter the combination of a type wheel, aplurality of main circuits, a plurality `of secondary circuits branchingfrom each main circuit, a tertiary circuit branching from each secondarycircuit, said circuits being normally open, a magnet included in each ofsaid circuits to determine `a given position ofy said. wheel, selectablemagnets veach ,responding to a characteristic kind of impulse andadapted to close a corresponding main circuit, means for closing abre'ak in at least one of the secondary circuits of each-of the maincircuits other than the selected main circuit on the coming in of the-irst impulse, means for closing at least one of the secondary circuitsof the main circuitsother than the selected main circuit' on the secondimpulse and for closing a break inthe tertiary circuits, the closing ofthe third selected main circuit completely closing a given tertiarycircuit and the closing of the respective circuits in the order namedenergizing at least three of the controller magnets, and means forrotating the type wheel when each of the` controller magnets isenergized.

21. In a telegraph typewriter the combination of a type wheel, normallyopen main, secondary and tertiary circuits, electromagnets included insaid circuits and adapted to control the position of said wheel, meansfor closing aselected main circuit to energize a given magnet and at thesame time to close a break 1n a plurality of secondary circuits, meansfor com letely closing a selected secondary circuit through another maincircuit to energize a magnet included in the selected secondary circuitand at the same time to close breaks in asplurality of tertiarycircuits, and means for completely closing a selected tertiary circuitthrough a third selected main circuit to energize a magnet included inthe selected tertiary circuit.

22. In a telegraphtypewriter the combination of a type wheel, acontroller comprising a plurality of magnets to determine successiveositions` of said Wheel,normally open circults inv which said magnetsare included, selectable magnets each responding to a ACharacteristickind of impulse and adapted y to close said circuits, the operationofsaid selectable magnets in a certain order ot three at the least closingthe circuits of a corresponding number of cont-roller magnets, andlmeans for rotating said Wheel when each of said controller magnets isenergized.

23. In a telegraph typewriter the combination of'a type wheel, normallyopen main, secondary and tertiary circuits, electromagnets included insaid circuits and adapted to control the osition of said wheel, meansfor closing a se ected main circuit to energize a given magnet and atthe same time to close a break in at lleast three of said secondarycircuits, means for completely closing one of said last-named secondarycircuits through another main circuit to energize a magnet included inthe selected secondary circuit and at the same time to close breaks inat least three of said tertiary circuits, and means for completelyclosing onepf said last-named tertiary circuits through another maincircuit to energize a magnet included in the selected tertiary circuit.

24. In a telegraph typewriter the combination of a type wheel, acontroller comprising a plurality of magnets divided into groups todetermine the osition of said wheel in a given quarter, division andsubdivision of that quarter, main circuits in which the quarter magnetsare included, secondary circuits in which the division magnets areincluded, tertiary circuits in which the subdivision magnets areincluded, all of saidV I circuits being normally open, selectablemagnets each responding to a characteristic kind `divided into groupstodetermine the position of said wheel in a given quarter, division andsubdivision of that quarter, main circuits in which the quarter magnetsare included, secondary circuits in which the division magnets areincluded, tertiary circuit-s in which the subdivision magnets areincluded, means for closing said circuits and energizing a selectedseries of said magnets in a .predetermined sequence for agiven letter orother symbol sald series comprising at least one in each group ofmagnets in the order named, and means for rotating said wheel when eachmagnet of the selected series is energized. y

26. In a telegraph typewriter the combination of a type wheel, acontroller comprising a plurality of magnets to determine the positionof said wheel, said magnets' being divided into groups included in main,secondary and tertiary t circuits, the complete circuit of a magnet in amain circuit having atleast one break, the complete Acircuit o a magnetin a secondary circuit having at least two breaks, and the completecircuit of a -magnet in a tertiary lcircuit having at least threebreaks, means forconipletely closing successively a selected main,secondary and tertiary circuit to thereby energize a correspondingcontroller magnet, and means for rotating said Wheel when each magnet,uof the particular series selected is energized.

27. Ina telegra h'typewriter the combination of a type w eel, acontroller comprising a plurality of magnets to determine successivepositions of said wheel, main circuits in which are included the magnetswhich determine the first i osition of said wheel, secondary -circuitsbranching from said main circuits and in which are included the magnetswhich determine the second position of said wheel, a tertiary circuitbranching from each secondary circuit in whichare included the magnetswhich determine the printing position of said wheel, selectable magnetseach respondin to a characteristic kind of impulse and a apted to closesaid main circuits, means vfor closing a -break in at leastone of Athesecondary circuits of each of the main circuits except those of

